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<?php $gene_symbol = null; $variant_type = 'some'; var_dump(compact('gene_symbol', 'variant_type')); var_dump(compact('gene_symbol', null));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/dfQPv
function name:  (null)
number of ops:  17
compiled vars:  !0 = $gene_symbol, !1 = $variant_type
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, null
    4     1        ASSIGN                                                   !1, 'some'
    5     2        INIT_FCALL                                               'var_dump'
          3        INIT_FCALL                                               'compact'
          4        SEND_VAL                                                 'gene_symbol'
          5        SEND_VAL                                                 'variant_type'
          6        DO_ICALL                                         $4      
          7        SEND_VAR                                                 $4
          8        DO_ICALL                                                 
    6     9        INIT_FCALL                                               'var_dump'
         10        INIT_FCALL                                               'compact'
         11        SEND_VAL                                                 'gene_symbol'
         12        SEND_VAL                                                 null
         13        DO_ICALL                                         $6      
         14        SEND_VAR                                                 $6
         15        DO_ICALL                                                 
         16      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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